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Finding the Third Proportional to 28,765.13 and 40,069.69

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Solution

The third proportional to 28,765.13 and 40,069.69 is: 55,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.13 : 40,069.69 = 40,069.69 : x
  2. Step 2: Convert to fraction form
    28,765.13/40,069.69 = 40,069.69/x
  3. Step 3: Cross multiply
    28,765.13x = 40,069.69 × 40,069.69
  4. Step 4: Simplify right side
    28,765.13x = 1,605,579,856.35
  5. Step 5: Solve for x
    x = 1,605,579,856.35/28,765.13
  6. Step 6: Final answer
    x = 55,816.89

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.